 | Horn bulb, stamped Rubes. Original sizeAdditional Information Horn bulb with rubes. The horn bulb is 3-1/2” by 7-1/2" with an 11/16" threaded brass end. It is the exact size and shape as the originals that were supplied to Ford. Also has the correct stamping - “Rubes #11”. Includes the brass ferrule and brass threaded sleeve. FAQ There are currently no FAQ for this item. To ask a question about this item please press and fill out the form.  | Bookmark This Page Don't forget to bookmark us! |